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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS介绍</title>
    <style>
        em {
            font-size: 1.5em;
            color: #cd5522;
            display: block;
            text-decoration: none;
            font-style: normal;
            font-weight: 700;
        }
        i {
            font-style: normal;
            text-decoration: line-through;
            color: #9e9e9e;
        }
    </style>
</head>
<body>
    <div>皮皮鲁送你100条命儿童安全百科</div>
    <div>（1-8辑，全16册）</div>
    <em>￥290.80</em>
    <i>￥476.80</i>
</body>
</html>